/Engine/Source/Runtime/MediaUtils/Public/MediaSampleQueue.h
void FindRangeInQueue ( const [TRange](API\Runtime\Core\Math\TRange)< [FMediaTimeStamp](API\Runtime\Media\FMediaTimeStamp) > & TimeRange, bool bReverse, int32 & FirstPossibleIndex, int32 & LastPossibleIndex, int32 & NumOldSamplesAtBegin )